Publisher DOI: 10.1109/VTCSpring.2018.8417572
Title: Markov Chain Monte Carlo Methods for a Low Complexity LTE-Advanced Joint Detector
Language: English
Authors: Castillo, R.A.J. 
Tannich, Jan 
Falk, Melanie 
Bauch, Gerhard 
Issue Date: 20-Jul-2018
Source: IEEE Vehicular Technology Conference (2018-June): 1-5 (2018-07-20)
Journal or Series Name: IEEE Vehicular Technology Conference 
Abstract (english): To meet the goal of tenfold increase in spectral efficiency, interference cancellation and multiuser detection are expected to be important tasks of fifth-generation (5G) radio access systems. Both tasks can be realized by joint detection algorithms. However, joint detection algorithms such as maximum likelihood (ML) detection have a high computational complexity. Previous works have shown that joint detectors based on Markov chain Monte Carlo (MCMC) methods can achieve similar results compared to ML detection with a large reduction in the computational complexity for systems with a large number of streams or users. The purpose of this work is to present a MIMO joint detector based on MCMC methods and evaluate it within the constraints of LTE Advanced (LTE-A), namely, using at most 8 transmit antennas and 64-QAM modulation. The evaluation is done separately from the channel decoder. Moreover, the complexity of the presented algorithm is compared to the one of an ML detector. The results show that the proposed MIMO detector offers a similar detection error rate compared to an ML detector. Furthermore, it was observed that the complexity reduction is significant for systems with more than six transmit antennas.
URI: http://hdl.handle.net/11420/2569
ISBN: 978-153866355-4
ISSN: 1550-2252
Institute: Nachrichtentechnik E-8 
Type: InProceedings (Aufsatz / Paper einer Konferenz etc.)
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